Your computer starts up but shows nothing on the screen, and it shocks when you touch the case.
Your computer starts up but shows nothing on the screen, and it shocks when you touch the case.
Three months ago I purchased a new PC. However, the PSU they provided was not compatible, so I had to use an older one that I owned. So far everything seems fine until I began experiencing shocks whenever I touched the chassis. One day I powered on the PC and noticed it had no display, no mouse, keyboard, or monitor signals. After changing the power cable, the issue resolved for a week, but the same problems returned, so I took the PC to a technician. He tested it and confirmed it was functioning properly, attributing the issue to my home wiring. Living in a rented apartment, the wiring here is poor and lacks earth connections. He suggested either moving out or installing a UPS. I bought one, and everything worked for three weeks until this week the same problem resurfaced. I switched the power cables again, and it functioned for four days, but today it happened once more, and changing cables didn’t help. Anyone have any suggestions? Could it be related to the PSU? Might it cause the chassis to shock while the PC powers on but shows no display? I’ve observed that sometimes the PC works perfectly until suddenly it stops showing anything—especially when I turn it off at night and try to restart the next day. I’ve already spent a lot on the UPS. Thank you for reading.
It seems you're looking to relocate with reliable electrical setup. If your home's outlets aren't properly grounded, fixing them might be necessary, especially if the responsibility falls to your landlord. Make sure you follow local laws and city codes regarding grounding and electrical safety. Also, it would be helpful to know the make and model of your power supply unit.
She takes charge, but in Brazil repairs can take months. If this is the only option, I’ll go ahead. Could the lack of proper grounding be the issue I’m experiencing? My 500W EVGA 100-W1-0500-KR PSU seems to be the problem.
These are the kind of connections you typically use? Do you own a multimeter or a voltage meter? Is there any voltage detected at the grounding pin in the socket? Can you test the voltage on your case? The grounding path should carry excess voltage from the case through the power supply into the house wiring and then into the ground. Even without proper grounding, the PC chassis shouldn't show any voltage. This suggests something is supplying voltage to the case while the grounding isn't functioning correctly. I've noticed faulty power strips causing voltage on their grounding pins, and sometimes inexpensive outlets still show some voltage at the grounding pin even when grounding is correct? Additionally, certain faulty components can release voltage onto the case.